Engineering News-Record has released its list of the Top 600 Specialty Contractors, including its top contract glaziers. A number of companies rounding out the top ten glazing and curtainwall firms saw revenue increases in 2012 compared to 2011.

Harmon Inc., once again ranked in the number-one slot, saw its revenue increase 20 percent to $180 million. Likewise, Enclos Corp. in the number-two slot saw its revenues up 10 percent to $176.4 million. Coming in at number 3, Walters & Wolf had revenues increase 38 percent to $140.3 million.

The list below provides a breakdown of the top ten glazing and curtainwall firms making the list.

Company

$Mill/2012 Revenue

% Change ’11 – ’12

Harmon

$180

+20

Enclos

176.4

+10

Walters & Wolf

140.3

+38

W&W

85

-11

Tower Glass Inc.

55

+30

Karas & Karas

48.7

+125

National Enclosure Co. LLC

45.1

NA

Gamma Windows & Walls International Inc.

35.7

NA

Haley Greer Inc.

35

NA

Alliance Glazing Technologies

31.1

NA

Earlier this year USGlass magazine also released its list of the industry’s top contract glaziers. A number of the same companies, including Harmon Inc., Enclos, Walters & Wolf, W&W and Gamma, were listed in the top ten on both lists.

According to the ENR report, the specialty contractor industry represents a significant part of the overall contract glazing industry. The report noted the top 600 saw combined revenues of $81.33 billion in 2012, up 12.7 percent from $72.14 billion in 2011.

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